1.2 参与方法评估和文件编制的资源人员和机构的联系方式

有助于对方法进行记录/评估的机构名称（如相关）

Sultan Qaboos University (SQU) - 阿曼

1.3 关于使用通过WOCAT记录的数据的条件

（现场）数据是什么时候汇编的？:

15/09/2013

编制者和关键资源人员接受有关使用通过WOCAT记录数据的条件。:

是

2.1 该方法的简要说明

Mapping of land degradation in the Sultanate of Oman to identify areas with various degrees of degradation, and factors and processes causing degradation.

2.2 该方法的详细说明

该方法的详细说明:

The Environment Authority has implemented land degradation mapping in the Sultanate of Oman in the Governorate of Dhofar, South and North Al Sharqiyah Governorates, and the Governorate of Al Dakhiliyah, in cooperation with Sultan Qaboos University, with the aim of identifying areas with various degrees of degradation and identifying the factors and processes causing degradation.
This investigation was based on high-resolution satellite imagery using NDVI as an Index of land degradation in the Dhofar Mountains and the invasion of mesquite (Prosopis juliflora.) in the plain of Salalah, as well as very high resolution aerial and satellite images of Jebal Al-Akhder derived from National Survey Authority. Precipitation data from two WMO stations were also utilized to test the link between precipitation and vegetation health. Vegetation was mapped to monitor changes and its health over time. In addition, a socio-economic survey in the Governorate of Dhofar was conducted, based on random sampling. The survey covered 6 different locations (Taqa, Taaqa farm, Zaik, Qiroon, Marbath, Al-Haqq and Taitam). The preliminary results clearly show that the study area has witnessed significant land use change between 1985 and 2013, marked by the emerging of a significant built-up area and water conservation infrastructure.
Spot images clearly show sharp changes in vegetation health through the years from 1994 to 2013. Vegetative vigour is lower in all years compared to 1994. Besides, the investigation shows a statistical relationship between rainfall and the status of the health of vegetation. Monsoon rainfall has an impact on the growth of vegetation. Around 2002-2003, the region suffered a major drought. Between 2012 and 2013, vegetative activity shows a decreasing trend. The analysis identified an area affected by the worst degree of land degradation. This area is situated in the southeastern of the Dhofar Mountains. In this area the process of land degradation is very active, with significant decrease in vegetation in 2013 compared to 2004. The mequite invasion in the Salalah Plain contributed to the degradation of natural vegetative cover in Dhofar Governorate. In nearly 30 years, the infested area almost quadrupled, indicating an average rate of expansion of 122,555m2 per year. The mesquite stands seem to have survived through the drought of 2002-2003.
The preliminary results of the survey clearly show that the mountains of Dhofar are under heavy anthropic pressure. The number of livestock is increasing and the native plant species are in great demand for cooking and heating.
Fortunately, the analysis identifies two areas, situated in the south-west of the study area, where vegetation has increased in vigor and density. The areas preserved from this process are usually inaccessible and far from human activities.
Vegetation cover change in Al-Jabal Al-Akhdar from 1985 to 2014 was analysed using very high resolution aerial and satellite images. Vegetation cover is also studied near settlements, dams, in wadis, and in agricultural areas. The change in total vegetation cover in the study area of Al-Jabal Al-Akhdar from 1985 to 2014 is very evident from the analysis of the data and maps produced.
Vegetation cover increased from 7.38 km2 during 1985 to 13.65 km2 in 2014. This change of vegetation cover was most noticeable in wadis and gullies where vegetation increased from 4.56 km2 during to 9.38 km2. One main factor that might be contributing to this increase of vegetation in wadis is the increase in the number of dams for storing surface water, as the number of dams increased from 7 in 1985 in the study area to 27 in 2014. Vegetation within and around 1 km of settlements in the study area increased from 2.09 km2 during 1985 to 5.45 km2 in 2014. In all other areas, that are distant from human activities, there is a considerable change in green vegetation cover between 1985 and 2014 where vegetation cover increased from 2.49 km2 in 1985 to 3.91 km2 in 2014. It is important to note here that vegetation cover density has a strong correlation with the amount of rainfall in Al-Jabal Al-Akhdar and there was a large difference in the annual rainfall between the two years, i.e. 1985 and 2014. The annual rainfall in 1985 was about 150mm for that particular year. The year 1984 was not much better where annual rainfall was lower than 200mm according to available records. The annual rainfall in 2013, the year preceding date of image in 2014, was 466mm, which is three times higher that that of 1985. Given the results of this study, there is a clear indication that the amount of rainfall plays a major role in defining the density of vegetation cover even if land degradation is taking place in very localized areas where there is pressure from grazing, urbanization, and tourism.

2.3 该方法的照片

2.5 采用该方法的国家/地区/地点

2.6 该方法的开始和终止日期

2.7 方法的类型

• 基于项目/方案

2.8 该方法的主要目的/目标

1.Monitoring and survey of land degradation and areas vulnerable to degradation
2.Enhancing human abilities in land degradation issues
3.Identifying various degrees of degraded areas, and factors and processes causing degradation
4.Regular monitoring of degraded areas

2.9 推动或妨碍实施本办法所适用的技术的条件

3.1 该方法涉及的利益相关者及其职责

3.2 当地土地使用者/当地社区参与该方法的不同阶段

	当地土地使用者/当地社区的参与	指定参与人员并描述活动
启动/动机	外部支持	Governor's offices in respective regions played a major role in motivating community leaders to participate in the project
实施	外部支持	Regional directorates and Governor offices helped in organizing meetings with local communities to collect information about land use activities, including farming and grazing, in their respective villages

3.3 流程图（如可用）

3.4 有关SLM技术选择的决策

具体说明谁有权决定选择要实施的技术:

• 政治家和领袖

明确做出决策的依据:

• 研究结果

4.1 能力建设/培训

是否为土地使用者/其他利益相关者提供培训？:

是

明确受训人员:

• 现场工作人员/顾问

培训形式:

• 课程

涵盖的主题:

1.Understanding GIS and geographical approach to land degradation
2. Use of remote sensing techniques for data collection
3. Land degradation assessment in drylands

4.2 咨询服务

土地使用者有权使用咨询服务吗？:

否

4.3 机构强化（组织发展）

是否通过这种方法建立或加强了机构？:

• 是，适度

具体说明机构的强化或建立程度:

• 国家

具体说明支持类型:

• 能力建设/培训

4.4 监测和评估

监测和评估是该方法的一部分吗？:

是

若是，该文件是否用于监测和评估？:

否

4.5 研究

研究是该方法的一部分吗?

是

明确话题:

• 社会学
• 生态学

5.1 该方法中SLM组成部分的年度预算

如果不知道准确的年度预算，请给出一个范围:

• 100,000-1,000,000

5.2 为土地使用者提供财政/物质支援

土地使用者是否获得实施该技术的财政/物质支持？:

否

5.4 信用

是否根据SLM活动的方法给予信用值？:

否

5.5 其它激励或手段

是否有其他激励措施或工具用于促进SLM技术的实施？:

否

6.1 方法的影响

6.2 土地使用者实施SLM的主要动机

6.3 方法活动的可持续性

土地使用者能否维持通过该方法实施的措施（无外部支持的情况下）？:

• 不确定

6.4 该方法的长处/优点

编制者或其他关键资源人员认为的长处/优势/机会
1-As the results show that the amount of rainfall plays a major role in defining the density of vegetation, water catchment techniques can be deployed during rainfall periods – especially during Dhofar monsoon characterized with white fog and light rains- such as fog harvesting, increasing recharge dams, using new irrigation techniques from dams for affected areas
2-By mapping land degradation in the Sultanate, areas that need protective strategies and policies can be defined, to avoid the degradation of areas of similar features through the coordination with respective sectors including urban planning, tourism, and agriculture.
3- As the analysis identifies areas where vegetation has increased in vigor and density, factors leading to that may be explored and studied in order to apply same factors in similar environments.

6.5 该方法的弱点/缺点以及克服它们的方法

编制者或其他关键资源人员认为的弱点/缺点/风险	如何克服它们？
1-As the spread and type of vegetation and climatic conditions differs greatly from area to area in the Sultanate of Oman, different procedures and techniques need to be employed.	studying the general conditions and features of each area and applying different procedures and techniques based on specific characteristics.
2-Analysis of vegetation change using satellite images in terrain characterized by deep slopes and deep valleys in some areas in the Sultanate is very difficult.	using very high resolution remotely sensed images
3-High resolution remotely sensed images are sometimes unavailable for past periods, which hinder studying vegetation change in this region where using satellite is difficult as well.

7.1 方法/信息来源